| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] be often [verb] because | 9 |
|
| 2 | [noun] be often [vb pp] because | 9 |
|
| 3 | [noun] is often [verb] because | 6 |
|
| 4 | [noun sg] be often [verb] because | 6 |
|
